CableLabs Acronym Definitions
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1394
IEEE 1394, also called Firewire.
5C
5 Companies That License Digital Transmission Content Protection (DTCP); Sony, Matsushita (Panasonic), Intel, Toshiba, Hitachi
A
ABR
Available Bit Rate
AC-3
Audio Coding Standard developed by Dolby Labs
ACO
Additional Call Offering
ADSL
Asymmetric Digital Subscriber Line
AES
Advanced Encryption Standard
AGC
Automatic Gain Control
AIT
Application Information Table
AN
Access Node
ANSI
American National Standards Institute
API
Application Program Interface
ARP
Address Resolution Protocol
ARPU
Average Revenue per Unit
ASC
Automatic Slope Control
ASD
Authorized Service Domain
ATM
Asynchronous Transfer Mode
ATP
Acceptance Test Plan
ATSC
Advanced Television System Committee
ATVEF
Advanced Television Enhancement Forum
AVC
Advanced Video Coding
AWT
Abstract Windowing Toolkit
B
BER
Bit Error Rate
BFS
Broadcast File System
BNF
Backus Naur Form
BPDU
Bridge Protocol Data Unit
BPI
Baseline Privacy Interface
BPI+
Baseline Privacy Interface Plus Conditional Access (CA)
BRI
Basic Rate Interface
C
C/N or CNR
Carrier-to-Noise Ratio
CA
Certification Authority
CA
Conditional Access
CALEA
Communications Assistance for Law Enforcement Act
CAP
CableHome Address Portal
CARS
Cable Television Relay Services
CAS
Conditional Access System
CAT
Conditional Access Table
CAT
CableHome Address Translation
CATV
(archaic) Community Antenna Television System
CATV
Cable Television
CBC
Cipher Block Chaining
CBR
Constant Bit Rate
CCCM
CPE Controlled Cable Modem
CCI
Copy Control Information
CDMA
Code Division Multiple Access
CDR
Call Detail Record
CE
Consumer Electronics
CEA
Consumer Electronics Association
CHILA
CableCARD-Host Interface License Agreement
CLASS
Custom Local Area Signaling Services
CLEC
Competitive Local Exchange Carrier
CM
Cable Modem
CMCI
Cable Modem to CPE Interface
CMS
Call Management Server
CMSS
Call Management Server Signaling
CMTS
Cable Modem Termination System
CMTS-NSI
Cable Modem Termination System – Network Side Interface
CO
Central Office
CODEC
Coder-DECoder
CODEX
Codes Exchange
CORBA
Common Object Request Broker Achitecture
CoS
Class of Service
CP
Content Protection/Copy Protection
CPD
Common Path Distortion
CPE
Customer Premises Equipment
CRA
Certificate Requesting Authority
CRC
Cyclic Redundancy Check
CRL
Certificate Revocation List
CRT
Cathode Ray Tube
CSA
Common Scrambling Algorithm
CSD
Circuit Switched Data
CSMA/CD
Carrier Sense Multiple Access with Collision Detection
CSO
Composite Second Order Beat
CSR
Customer Service Representative
CSS
Cascading Style Sheets
CSV
Circuit Switched Voice
CTB
Composite Triple Beat
CTP
Compliance Test Plan
CVC
Code Verification Certificate
CW
Control Word
CWDM
Coarse Wavelength Division Multiplexing
D
DASE
Digital Application Software Environment
DAVIC
Digital Audio Visual Council
dB
Decibel
DBS
Direct Broadcast Satellite
DCAA
Digital Certificate Authorization Agreement
DCR
Digital Cable Ready
DDE-1
Declarative Data Essence
DECT
Digital Enhanced Cordless Telecommunications
DES
Data Encryption Standard
DFAST
Dynamic Feedback Arrangement Scrambling Technique
DHCP
Dynamic Host Configuration Protocol
DiffServ or DS
Differentiated Services Architecture for Network Traffic
DII
Download Info Indication
DN
Directory Number
DNS
Domain Name Server
DOCSIS®
Data Over Cable Service Interface Specifications
DOM
Document Object Model
DOS
Disk Operating System
DPI
Digital Program Insertion
DQoS
Dynamic Quality of Service
DRI
Digital Receiver Interface
DRM
Digital Rights Management
DSCP
DiffServe Code Point
DSG
DOCSIS Set-top Gateway
DSL
Digital Subscriber Line
DSLAM
Digital Subscriber Line Access Multiplexer
DSM-CC
ISO/IEC Digital Storage Media-Command and Control
DSP
Digital Signal Processing
DSS
Digital Signature Standard
DSS
Digital Satellite System
DTCP
Digital Transmission Content Protection
DTLA
Digital Transmission Licensing Administration
DTMF
Dual Tone Multi Frequency
DTV
Digital Television
DVB
Digital Video Broadcasting
DVI
Digital Video Interface
DVR
Digital Video Recorder
DVS
Digital Video Subcommittee
DWDM
Dense Wavelength Division Multiplexing
E
EAS
Emergency Alert System
ECB
Electronic Code Book
ECM
Entitlement Control Message
ECN
Engineering Change Notice
ECO
Engineering Change Order
E-Commerce
Electronic Commerce
ECPA
Electronic Communication Privacy Act
ECR
Engineering Change Request
EDTV
Enhanced Definition Television
EE
Execution Engine
EIA
Electronic Industries Association
EIA
Electronic Industry Alliance
EKTS
Electronic Key Telephone Service
EMC
Electromagnetic Compatibility
EMM
Entitlement Management Message
EMS
Element Management System
EMTA
Embedded Multimedia Terminal Adapter
EN
European Norms
EPG
Electronic Program Guide
ES
Elementary Stream
E-SMG
Embedded Subscriber Media Gateway
ETSI
European Telecommunications Standards Institute
eTV
Enhanced TV
ETV
Educational Television Station
F
FCC
Federal Communications Commission
FCO
Flexible Call Offering
FDD
Frequency Division Duplex
FDDI
Fiber Distributed Data Interface
FDMA
Frequency Division Multiple Access
FEC
Forward Error Correction
FIPS
Federal Information Processing Standard
FISA
Foreign Intelligence Surveillance Act
FM
Frequency Modulation
FPGA
Field Programmable Gate Array
FSN
Full Service Network
FTP
File Transfer Protocol
FTTN
Fiber To The Node
FTTP
Fiber To The Premise
G
G2B
Go2Broadband
GC
Gate Controller
GHz
GigaHertz
GigE
Gigabit Ethernet
GSD
Guaranteed Service Domain
GSM
Global System for Mobility
GTT
Global Title Translation
GW
Gateway
H
HAVi
Home Audio/Video Interoperability
HDCP
High-bandwidth Digital Content Protection
HDCP
High Definition Copy Protection
HDMI
High Definition Multimedia Interface
HDSL
High-speed Digital Subscriber Line
HDTV
High Definition Television
HF
High Frequency
HFC
Hybrid Fiber/Coaxial Cable
HMAC
Hashed Message Authentication Code
HPNA
Home Phone Line Networking Alliance
HRC
Harmonic Related Carrier
HSD
High Speed Data
HTML
HyperText Markup Language
HTTP
HyperText Transfer Protocol
HTTPS
HyperText Transfer Protocol Secure
Hz
Hertz
I
IANA
Internet Assigned Numbered Authority
IC
Inter-exchange Carrier
ICMP
Internet Control Message Protocol
IDCR
Interactive Digital Cable Ready
IDCP
Interactive Digital Cable Product
IDSL
ISDN Digital Subscriber Line
IEC
Inter-Exchange Carrier
IEC
International Electrotechnical Commission
IEEE
Institute of Electrical and Electronics Engineers
IETF
Internet Engineering Task Force
IGMP
Internet Group Management Protocol
IKE
Internet Key Exchange
ILEC
Incumbent Local Exchange Carrier
InterLATA
Inter-Local Access and Transport Area
IntraLATA
Intra-Local Access and Transport Area
IP
Internet Protocol
IP
Intellectual Property
IPDR
Individual Program Data Records
IPDR
Internet Protocol Design Record
IPDR
Internal Preliminary Design Review
IPG
Interactive Program Guide
IPPV
Impulse-Pay-Per-View
IPR
Intellectual Property Rights
IPsec
Internet Protocol Security
IRC
Incremental Related Carriers
ISA
Industry Standard Architecture
ISDN
Integrated Services Digital Network
ISO
International Organization for Standardization
ISP
Internet Service Provider
ISTP
Internet Signaling Transport Protocol
ISUP
Integrated Services Digital Network User Part
ISUP
ISDN User Part
ITU
International Telecommunications Union
ITV
Interactive Television
IVR
Interactive Voice Response System
J
J2EE
Java Two Enterprise Edition
JDK
Java Development Kit
JMF
Java Media Framework
JSSE
Java Secure Socket Extension
JTS
Joint Test Suite
K
Kbps
KiloBits Per Second
KDC
Key Distribution Center
KEK
Key Encryption Key
L
LAN
Local Area Networking
LAN
Local Area Network
LATA
Local Access and Transport Area
Layer 2
Link layer in Open Systems Interconnection (OSI) framework
Layer 3
Network layer in OSI stack; layer in firewall in which routing is based on IP address
LCD
Liquid Crystal Display
LDAP
Lightweight Directory Access Protocol
LDS
Local Distribution System
LEC
Local Exchange Carrier
LIDB
Line Information Database
LLC
Logical Link Control
LMDS
Local Multipoint Distribution System
LNA
Low Noise Amplifier
LNP
Local Number Portability
LOS
Line Of Sight
Low-Split
Common HFC frequency assignment in which upstream (to head-end) is below 42MHz and downstream (to customer) is above 54MHz
LPF
Low Pass Filter
L/R
Left/Right baseband audio outputs from stereo system
LSSGR
Local Access and Transport Area Switching Systems Generic Requirements
M
MA
Monitor Application
MAC
Media Access Control
MAC
Medium Access Control
MAC
Message Authentication Code
MAC-Address
Media Access Control Address
MAC-Procedure
Media Access Control Procedure
MAC-Sublayer
Media Access Control Sublayer
MATV
Master Antenna Television
MC
Multipoint Controller
MCU
Multipoint Conferencing Unit
MD5
Message Digest 5
MDS
Multipoint Distribution System
MDU
Multiple Dwelling Units
MG
Media Gateway
MGC
Media Gateway Controller
MGCP
Media Gateway Control Protocol
MHP
Multimedia Home Platform
MHz
MegaHertz
MIB
Management Information Base
Mid-split
Proposed upstream/downstream cross-over point at ~100MHz to increase available upstream bandwidth
MIME
Multipurpose Internet Mail Extensions
MMC
Multipoint Mixing Controller
MMDS
Multi-Channel/Multi-Point Distribution System
MMDS
Multipoint Microware Distribution System
MMI
Man-Machine Interface
MoCA
Multimedia Over Coax Alliance
MOU
Minutes of Usage
MOU
Memorandum of Understanding
MPAA
Motion Picture Association of America
MPEG
Moving Picture Experts Group
MPTS
Multiple Program Transport Streams
MPVD
Multichannel Video Program Distributor
MSAP
Media Access Control Service Access Point
MSO
Multiple (cable) Systems Operator
MTA
Message Transfer Agent
MTA
Multimedia Terminal Adapter
MTP
Message Transfer Part
MTTR
Mean Time to Repair
N
NANP
North American Number Plan
NAT
Network Address Translation
NCS
Network Call Signaling
NCTA
National Cable Telecommunications Association
NDA
Nondisclosure Agreement
NDIS
Network Driver Interface Specification
NDVR
Network DVR
NE
Network Elements
NEC
New Entrant Carrier
NGNA
Next Generation Network Architecture
NIC
Network Interface Card
NID
Network Interface Device
NIU
Network Interface Unit
NIUF
North American ISDN Users Forum
NOC
Network Operations Center
NTP
Network Time Protocol
NTSC
National Television Systems Committee
NVOD
Near-Video-on-Demand
NWC
Net Weekly Circulation
O
OCAP
OpenCable Applications Platform
ODA
Outlet Digital Adapter
ODRL
Open Digital Rights Language Initiative
OEM
Original Equipment Manufacturer
OID
Object Identification
OOB
Out-Of-Band Channel
OOB-FDC
Out-Of-Band-Forward-Data-Channel
OOB-RDC
Out-Of-Band-Reverse-Data-Channel
OS
Operating System
OSI
Open Systems Interconnection
OSI
Open System Interface
OSS
Operation Systems Support
OTARD
Over The Air Reception Devices
OTP
Office of Telecommunications Policy
OUI
Organizationally Unique Identifier
OVS
Open Video Systems
P
PBX
Private Branch Exchange
PC
Personal Computer
PCI
Peripheral Component Interface
PCM
Pulse Code Modulation
PCS
Personal Communications Service
PDU
Protocol Data Unit
PE
Presentation Engine
PES
Packetized Elementary Streams
PES
Program Elementary Stream
PHB
Per Hop Behavior
PHILA
POD-Host Interface License Agreement
PHY
Physical Layer
PICS
Protocol Implementation Compliance Statements
PID
Packet Identifier
PII
Personal Identifiable Identification
PING
Packet Internet Grouper
PKCROSS
Public Key Cryptography for Cross-Ream Authentication
PKCS
Public Key Cryptography Standards
PKI
Public Key Infrastructure
PKINIT
Public Key Cryptography for Initial Authentication
PMA
Performance Monitoring Application
PMD
Physical Media Dependent Sublayer
PMG
Public Switched Telephone Network Media Gateway
PMT
Program Map Table
PnP
Plug-n-Play
POD
Point-of-Deployment Module, now called a CableCARD
POF
Plastic Optical Fiber
POP
Point-of-Presence
POP3
Post Office Protocol 3
POTS
Plain Old Telephone Service
PPP
Point-to-Point Protocol
PPV
Pay-Per-View
PRI
Primary Rate Interface
PS
Portal Services
PSC
Payload Service Class Table
PSI
Program-Specific Information
PSIP
Program and System Information Protocol
PSN
Packet-switched Network
PSTN
Public Switched Telephone Network
PUSI
Payload Unit Start Indicator
PVC
Permanent Virtual Circuit
PVR
Personal Video Recorder
Q
QAM
Quadrature Amplitude Modulation
QoS
Quality-of-Service
QPSK
Quadrature Phase-Shift Keying
R
RADIUS
Remote Access Dial-In User Service
RAN
Regional Area Network
RAS
Registration, Admission, and Status
RBOC
Regional Bell Operating Company
RBOCs
Regional Bell Operating Companies
RC
Remote Control
RC
Redistribution Control
RC4
Rivest Cipher 4
RF
Radio Frequency
RFC
Request For Comments
RFI
Radio Frequency (RF) Interference
RFI
Request For Information
RFP
Request For Proposal
RGU
Revenue Generating Unit
RIAA
Recording Industry Association of America
RIP
Routing Information Protocol
RKS
Record Keeping Server
RMI
Remote Method Invocation
RMS
Rights Management System
ROSI
Return On Security Investment
RSA
Public key cryptosystem developed by Riverst, Shamir, Adleman; also company by same name marketing public key technology
RSVP
Resource reSerVation Protocol
RTP/RTCP
Real-time Protocol/Real-time Control Protocol
RTCP
Real-time Control Protocol
RTP
Real Time Protocol
RTSP
Real Time Streaming Protocol
S
SA
Security Association
SAID
Security Association Identifier
SAP
Second Audio Program
SAP
Service Access Point
SCCP
Signaling Connection Control Part
S.CDMA
Synchronous Code Division Multiple Access
SCN
Switched Circuit Network
SCP
Service Control Point
SCTE
Society for Cable Telecommunications Engineers
SCTP
Stream Control Transmission Protocol
SD
Secure Digital
SDMA
Spatial Division Multiple Access
SDP
Session Description Protocol
SDTV
Standard Definition Television
SDU
Service Data Unit
SF
Service Flow
SFID
Service Flow Identifier
SG
Signaling Gateway
SGCP
Simple Gateway Control Protocol
SHA-1
Secure Hash Algorithm 1
SI
Service Information
SI
System Integrators
SID
Service Identifier
SIP
Session Initiation Protocol
SMATV
Satellite Master Antenna Television System
SMG
Subscriber Media Gateway
SMPTE
Society for Motion Picture and TV Engineers
SMS
Spectrum Management System
S.MTA
Standalone Multimedia Terminal Adapter
SMTP
Simple Mail Transfer Protocol
SNA
Systems Network Architecture
SNAP
Subnetwork Access Protocol
SNMP
Simple Network Management Protocol
SNR
Signal-to-Noise Ratio
SOC
System On A Chip
SOC
Selectable Output Control
SOHO
Small Office/Home Office
SONET
Synchronous Optical NETwork
SPID
Service Profile Identifier
SPTS
Single Program Transport Streams
SS7
Signaling System Number 7
SSL
Secured Socket Layer
SSP
Signal Switching Point
STB
Set-top Box
STP
Signal Transfer Point, Shielded Twisted-Pair
STP
Signal Transfer Point
STP
System Test Plan
SVC
Switched Virtual Circuit
SVD
Subscriber Video Device
S-Video
High quality video interface, derived from Super VHS signal format
SVOD
Subscription Video On Demand
T
TAR
Total Activity Report
TCP
Transmission Control Protocol
TCP/IP
Transmission Control Protocol/Internet Protocol
TDD
Time Division Duplex
TDMA
Time Division Multiplexing Access
TEI
Terminal Endpoint Identifier
TEP
Test Execution Package
TFTP
Trivial File Transfer Protocol (Trivial FTP)
TGS
Ticket Granting Server
TIA
Transmission Amplifier
TIPHON
Telecommunications & Internet Protocol Harmonization Over Network
TL/1 or TL-1
Transaction Language 1
TLS
Transport Layer Security
TLV
Type/Length/Value
TMN
Telecommunications Management Network
TN
Telephone Number
ToD
Time of Day
ToS or TOS
Type of Service (also DiffServ Code Point, DSCP)
TS
Transport Stream
TVRO
Television Receiver-Only
U
UART
Universal Asynchronous Receiver Transmitter
UBR
Unspecified Bit Rate
UCD
Upstream Channel Descriptor
UDCP
Unidirectional Digital Cable Product
UDCR
Unidirectional Digital Cable Receiver
UDP
User Datagram Protocol
UHF
Ultra High Frequency
UHTTP
Unidirectional Hypertext Transport Protocol
UI
User Interface
UpnP
Universal Plug and Play
URL
Uniform Resource Locator
USB
Universal Serial Bus
UTC
Coordinated Universal Time
V
VAD
Voice Activation Detection
VAR
Value-Added Reseller
VBI
Vertical Blanking Interval
VBR
Variable Bit Rate
VC
Virtual Channel
V-Chip
Violence Chip
VCT
Virtual Channel Table
VGA
Video Graphics Array
VHF
Very High Frequency
VLAN
Virtual Local Area Network
VOD
Video-on-Demand
VoIP
Voice-Over-Internet Protocol
VON
Voice-Over-Net
VPN
Virtual Private Network
VPVH
Viewers Per Viewing Household
VSAT
Very Small Aperture Terminal
VTR
Videotape Recorder
W
WAN
Wide Area Network
WATS
Wide Area Telecommunications Service
WDM
Wavelength Division Multiplexing
WWW
World Wide Web
VSB
Vestigial SideBand
X
X.509
An International Telecommunication Union recommendation for form of Public Key Infrastructure digital certificate
XAIT
eXtended Application Information Table
XHTML
Extensible Hypertext Mark-up Language
XML
Extensible Markup Language
XRML
Extensible Rights Markup Language